Tower Top Amplifier (TTA)
A TTA places a low-noise preselector and low-noise amplifier (LNA) at the tower top, close to the receive antenna. This location minimizes feeder loss and reduces the overall receive noise figure—delivering stronger uplink “talk-back,” wider coverage, and more reliable site access in LMR/PMR systems. High-quality filtering and strong linearity help prevent overload and intermodulation.
Sinclair advantage: Sinclair TTA systems are delivered as a matched package with the TTA and receiver multicoupler/controller together. This integrated approach optimizes end-to-end performance, simplifies integration, and ensures a balanced site design.
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Sinclair advantage: Sinclair TTA systems are delivered as a matched package with the TTA and receiver multicoupler/controller together. This integrated approach optimizes end-to-end performance, simplifies integration, and ensures a balanced site design.
Isolators
Receiver multicouplers are designed to conserve valuable antenna mounting structure space and decreasing system installation and maintenance costs by allowing between 2 and 32 channels to be connected to a single antenna. It also allows the best antenna position for use by all multicoupled frequencies to provide the ultimate coverage solution. Frequencies between 138 and 960 MHz are covered. They are available with a multitude of options such as preselector, power supply, fail-over, attenuation, and alarming functions.
